Transactions of Materials and Heat Treatment

Title：Fast exchanging mould system for warm extrusion precision forming of pick

Authors： Ma Shibo Sun Honglei Zhao Jun Shao Mingjie Wang Dongfeng Ma Jin

Unit： Hebei University of Science and Technology Yanshan University Yanshan University HengYuan Hi-Tech Co. Ltd.

KeyWords： warm extrusion precision forming fast exchanging mould system

ClassificationCode：TG376.5

year,vol(issue):pagenumber：2016,41(6):83-90

Abstract：

Considering structural characteristics of the pick body, three kinds of warm extrusion precision forming technologies were proposed to form the pick body, namely, the upset-extrusion technology for common axisymmetric pick, the floating assembling die upset-extrusion technology for local large size pick, and the upset-extrusion with radial-extrusion technology for the rotary wing pick. The quick change mould system of warm extrusion precision forming of pick body was designed according to various technologies and mould requirements to realize the corresponding various picks by different top and bottom dies. The dies could be replaced according to the specific type and the size of pick without replacing the other parts of the mould. The warm extrusion precision forming experiment was carried out, and the microstructure of pick formed was analyzed. The results show that the forming pick by warm extrusion quick change type mould system is suitable for forming different kinds of picks, which are of fine surface quality, low cost, less time for changing mould, and high productivity.

Funds：

基金项目:河北省教育厅青年基金资助项目（QN2014038）；河北省青年科学基金资助项目（E2015208105）；通用航空产业重点工程实验室平台基金资助项目（TY15）

作者简介：马世博（1980-），男，博士，讲师 E-mail：mashibo1980@163.com 通讯作者：邵明杰（1983-），女，硕士研究生 E-mail: shaomingjie1983@163.com

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